// -*-Mode: C++;-*-

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//***************************************************************************
//
// File:
//   FileError.cpp
//
// Purpose:
//   Implementation of interface for error reporting for hpcprof and hpcprof-mpi
//
// Description:
//   Handle error reporting for hpcprof and hpcprof-mpi
//   
//
//***************************************************************************

//***************************************************************************
// global includes
//***************************************************************************

#include <linux/limits.h>
#include <string.h>

#include <sstream>
#include <iostream>



//***************************************************************************
// local includes
//***************************************************************************

#include "FileError.hpp"



//***************************************************************************
// interface operations
//***************************************************************************

void
hpcrun_getFileErrorString
(
  const std::string &fnm, 
  std::string &errorString
)
{
  char pathbuf[PATH_MAX];
  char errbuf[1024];

  // grab the error string for the open failure before calling getcwd, 
  // which may overwrite errno 
  char *err = strerror_r(errno, errbuf, sizeof(errbuf));

  const char *path = realpath(fnm.c_str(), pathbuf);
  if (path == NULL) {
    path = fnm.c_str();
  }

  std::stringstream ss;

  ss << "'" << path << "', error ='" << err << "'";

  errorString = ss.str();
}
